20388521 is an odd 8-digits composite number following 20388520
and preceding 20388522 . In scientific notation, it is written as 2.0388521 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19891200 positive integers (up to 20388521) that are relatively prime to 20388521.
20388521 has 4 divisors, whose sum is 20885844
The reverse of 20388521 is 12588302
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million three hundred eighty-eight thousand five hundred twenty-one
Scientific notation
2.0388521 × 10^7
Engineering notation
2.0388521 × 10^6
Prime Factorization
41 × 497281
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20388521
Product of the distinct prime numbers
The prime factorization of 20388521 is 41 × 497281.
Since it has a total of 2 prime factors.
10 , 9 , 91 , 36 , 967 , 128 , 1912 , 780 , 64065 , 596 , 2708 , 911470 , 2498766 , 6020276 , 8696199 , 20213729 , 200739994 , 817928812 , 387908328 , 6338451845
n×2
40777042
n×3
61165563
n×4
81554084
n×5
101942605
n÷2
10194260.5
n÷3
6796173.6666667
n÷3
5097130.25
n÷5
4077704.2
n2
415691788567441
n3
8.4753407607348E+21
n4
1.727996630824E+29
n5
3.5231295595484E+36
2 √n
4515.3649907842
3 √n
273.18818173958
4 √n
67.196465612294
5 √n
28.965240883328
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20388520
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20388521 can be divided by 4 positive divisors.
The sum of these divisors (counting 20388521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110001101010101001
3
Ternary
1102100211210102
4
Quaternary
1031301222221
5
Quinary
20204413041
6
Senary
2004555145
8
Octal
115615251
10
Decimal
20388521
12
Duodecimal
69b2ab5
16
Hexadecimal
1371aa9
20
Vigesimal
678b61
36
Base36
c4zvt
md5
06175350d6220038d911c9cb8315b4d3
sha1
e58123726c962088efa2e541965a289bbd6f6ba5
sha256
5ff94f836e4622a5b262fdeb5bf837bb6dd27dcb0d0ad9e69c6893643f5d584c
sha512
04856656ab7d58ea0d9354fcaf1c64268a3e79f302df28bc9e90f5bd83bbed8200536da806028e35f64745ebb2071a2b0c41377c4755e7eda73e4a0fecf6c5cb
ripemd-160
25e9acc51f3ec46e32b83417f807f954fe4a19a6
Diameter
40777042
Circumference
128104855.58232
Area
1.3059342691211E+15
Volume
3.5501424360793E+22
Surface area
5.2237370764843E+15
Circumference
128104855.58232
Perimeter
81554084
Area
415691788567441
Diagonal
28833722.914929
Surface area
2494150731404646
Volume
8.4753407607348E+21
Space diagonal
35313954.263185
Perimeter
61165563
Area
1.79999824522E+14
Altitude
17656977.131593
Surface area
1.79999824522E+14
Volume
9.9882848746373E+20
Height
9611240.9716429